Non-point source (NPS) pollution refers to both water and air pollution from diffuse sources. Non-point source water pollution affects a water body from sources such as polluted runoff from agricultural areas draining into a river, or wind-borne debris blowing out to sea.Non-point source air pollution affects air quality from sources such as smokestacks or car tailpipes.Although these pollutants have originated from a point source, the long-range transport ability and multiple sources of the pollutant make it a non-point source of pollution.on-point source pollution can be contrasted with point source pollution, where discharges occur to a body of water or into the atmosphere at a single location.
Much has been written contrasting Uber's promise that drivers can make $90,000 a year with how much the ride-sharing company's drivers are really making. Not much has been written, however, about how much drivers earn working for Lyft, an on-demand car service similar to Uber. Lyft says its drivers can make $35 an hour. Vox editor Timothy Lee decided to conduct an experiment to see how much he could make. After a week, Lee had driven 54 passengers and made $596. His earnings came to about $10.50 an hour.
1 Based on their data, drivers can, on average, make more working for Uber than for Lyft and Sidecar in most places. Uber drivers make an average of $15.97 per ride with Uber, as opposed to Lyft ($11.48) and Sidecar ($13.35).  In order to make $50,000 a year, an Uber driver must provide 60.21 rides every week. A Lyft driver would have to provide 83.76 rides, and a Sidecar driver would have to provide 72.03 rides. To put that in perspective, 60.21 rides each week equates to between 20 and 21 hours of driving per week for an Uber driver.